First, this post contains MAJOR spoilers for Avengers: Endgame. So if you haven't seen the movie yet, I suggest you turn around and come back after! Tap to play or pause GIF Tap to play or pause GIF Tap to play or pause GIF Tap to play or pause GIF Marvel It's no secret that Mark Ruffalo has a pretty hard time not spoiling major plot points for the Marvel movies. Marvel I mean, he accidentally livestreamed a portion of Thor: Ragnarok at the premiere. Best of Marvel @thbestofmarvel Mark Ruffalo leaked a sneak peek of #ThorRagnarok from yesterday's premiere! 09:20 AM - 11 Oct 2017 Reply Retweet Favorite Twitter: @thbestofmarvel / Via Twitter: @thbestofmarvel And almost a year before Avengers: Infinity War was released, he revealed that everyone dies. Tap to play or pause GIF Tap to play or pause GIF Tap to play or pause GIF Tap to play or pause GIF ABC So when it came time for Avengers: Endgame, certain precautions were taken so that Mark wouldn't let anything slip. Alberto E. Rodriguez / Getty Images In an interview with E! News from early April, Mark revealed that his script was filled with fake scenes and that the cast even filmed moments that were never meant to be in the movie. E! News / Via youtu.be And then, Mark let out the big spoiler! To emphasize his point, he revealed that he even read a crazy scene where Captain America gets married. E! News / Via youtu.be Of course, we now know that Avengers: Endgame ends with Steve deciding to stay in the past after returning the Infinity Stones, and he eventually gets married to Peggy Carter. Tap to play or pause GIF Tap to play or pause GIF Tap to play or pause GIF Tap to play or pause GIF Marvel At the time of the interview, Mark hadn't seen Endgame, so there's no way he actually knew that this scene would become so important and even end the film. E! News / Via youtu.be Chris Evans did cover Mark's reveal quickly by saying everyone does whatever they can to stop Mark from spilling any secrets. E! News / Via youtu.be My favorite part is that Marvel fans knew that this could possibly be a huge spoiler just because Mark said it. YouTube / Via youtu.be Also, I don't think Mark realizes that he spoiled the movie, considering he recently posted a video where Brie Larson congratulates him for not spoiling Endgame. Mark Ruffalo @MarkRuffalo Now that #AvengersEndgame is out in the world, you all can finally live without the fear of me spoiling it 🙈 @brielarson @RobertDowneyJr @TessaThompson_x @Renner4Real 08:57 PM - 26 Apr 2019 Reply Retweet Favorite Twitter: @MarkRuffalo / Via Twitter: @MarkRuffalo Anyway, I'm still obsessed with Mark Ruffalo trying to keep all of his Marvel secrets and I'm glad to see that he's still just an excited fan who wants to talk about Endgame. Tap to play or pause GIF Tap to play or pause GIF Tap to play or pause GIF Tap to play or pause GIF Marvel You can watch the full video where Mark accidentally spoils the ending here. View this video on YouTube E! News / Via youtu.be Obsessed with Marvel? Check out all of our Marvel and Avengers: Endgame content here!